The most recent Small Area Health Insurance Estimates from the U.S. Census Bureau reveals that 20 percent of Philadelphians — more than 189,000 — are uninsured, thus topping the list of counties in Pennsylvania. For them, and for the countless under-insured in the city, health care would be prohibitive were it not for the many government-funded and non-profit clinics that provide quality, low-cost medical services throughout Philly.